thin shell
- eggshellBrittle ovum casing
- membraneThin tissue sheet
- delicateEasily broken or harmed
- fragileEasily broken or damaged
- crustHard outer layer
layer · hull · husk · carapace · exoskeleton · veneer · film · coating · crack · brittle · translucent · papery · dome · hollow · nacre · tortilla · pastry · crackle